 Life as the product of life. However far man may extend himself with his knowledge, however objective he may appear to himself - ultimately he reaps nothing but his own biography.Section IX, "Man Alone with Himself" / aphorism 513.

 A philosophical frame of mind. Generally we strive to acquire one emotional stance, one viewpoint for all life situations and events: we usually call that being of a philosophical frame of mind. But rather than making oneself uniform, we may find greater value for the enrichment of knowledge by listening to the soft voice of different life situations; each brings its own views with it. Thus we acknowledge and share the life and nature of many by not treating ourselves like rigid, invariable, single individuals.Section IX, "Man Alone with Himself" / aphorism 618.